When retired Jill Parker wins an all-expenses paid mediterranean cruise for two she is thrilled! At 63 life in retirement has got a little bit bland for Jill and this might be just the holiday she and husband Eddy need to get the sparks back in their marriage. But when Eddy admits he would much prefer to build his patio and look through the latest DIY magazine Jill is left with only one other option - her sister Diana. Diana has become rather reclusive since her husband Caspar died but perhaps this is the push she needs to bring some excitement back into her life too? Could this trip be just what both sisters need to reconnect and chart a new path for their futures? Excited to be exploring new horizons and catching up the sisters soon discover that not everything is smooth sailing on board. And as they enjoy cocktails together at sundown they discover that they are both actually a little all at sea. . .